| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 150 |
6.7%
|
| 2 | 1 | 171 |
7.7%
|
| 3 | 2 | 350 |
15.7%
|
| 4 | 3 or more | 1558 |
69.9%
|
| Sysmiss | 36 |